blob: ada6734a564eae4ab4803b4811e11f7f32a9a9bd (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
//===----- CGCUDARuntime.h - Interface to CUDA Runtimes ---------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This provides an abstract class for CUDA code generation. Concrete
// subclasses of this implement code generation for specific CUDA
// runtime libraries.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_LIB_CODEGEN_CGCUDARUNTIME_H
#define LLVM_CLANG_LIB_CODEGEN_CGCUDARUNTIME_H
namespace llvm {
class Function;
class GlobalVariable;
}
namespace clang {
class CUDAKernelCallExpr;
class VarDecl;
namespace CodeGen {
class CodeGenFunction;
class CodeGenModule;
class FunctionArgList;
class ReturnValueSlot;
class RValue;
class CGCUDARuntime {
protected:
CodeGenModule &CGM;
public:
// Global variable properties that must be passed to CUDA runtime.
enum DeviceVarFlags {
ExternDeviceVar = 0x01, // extern
ConstantDeviceVar = 0x02, // __constant__
};
CGCUDARuntime(CodeGenModule &CGM) : CGM(CGM) {}
virtual ~CGCUDARuntime();
virtual RValue EmitCUDAKernelCallExpr(CodeGenFunction &CGF,
const CUDAKernelCallExpr *E,
ReturnValueSlot ReturnValue);
/// Emits a kernel launch stub.
virtual void emitDeviceStub(CodeGenFunction &CGF, FunctionArgList &Args) = 0;
virtual void registerDeviceVar(const VarDecl *VD, llvm::GlobalVariable &Var,
unsigned Flags) = 0;
/// Constructs and returns a module initialization function or nullptr if it's
/// not needed. Must be called after all kernels have been emitted.
virtual llvm::Function *makeModuleCtorFunction() = 0;
/// Returns a module cleanup function or nullptr if it's not needed.
/// Must be called after ModuleCtorFunction
virtual llvm::Function *makeModuleDtorFunction() = 0;
};
/// Creates an instance of a CUDA runtime class.
CGCUDARuntime *CreateNVCUDARuntime(CodeGenModule &CGM);
}
}
#endif
|
